300PSI NRS Gate Valve-Flanged x Mechanical Joint End

Categories:

Gate Valve

Compliance Credentials: Strictly certified to UL 260 and FM standards for high-hazard critical infrastructure

TEL：

0086-18600252968

MESSAGE

300PSI NRS Gate Valve-Flanged x Mechanical Joint End

▏Product Description

FM/UL approved NRS gate valve (Flanged x Mechanical Joint) built to ANSI/AWWA C515 (sizes 2"-12" per standard). Features a 300PSI working pressure (600PSI test), ductile iron body, EPDM vulcanized disc, 0-80°C range, and NSF 61 lead-free certification for commercial fire protection systems.

▏Technical Features

Design Standard

ANSI/AWWA C515

Sizes

2"(FM) 2.5", 5"(UL) 3", 4", 6", 8", 12"(FM UL)

Flange Standard

ASME/ANSI B 16.1 Class 125 ASME/ANSI B 16.42 Class 150 BS EN 1092-2 PN 16 GB / T9113.1

Mechanical Standard

ANSI / AWWA 110 or ANSI / AWWA C153

Approvals

FM, UL, CUL, NSF / ANSI 61 & NSF / ANSI 372

Maximum Working Pressure

300PSI

Maximum Testing Pressure

600PSI

Pressure Standard

conforms to FM 1120 / 1130, UL 262, ULC / ORD C262-92

Working Temperature Range

0~80°C / 32~176°F

Coating Details

Epoxy or Coating upon request

Body Features

NPT plug on body with 1 operating nut

Lead-free Certification

Certified lead-free by NSF/ANSI 61 & NSF / ANSI 372 is available.

Post Flange Options

With and Without Post Flange are available、

▏Valve Material List

NO.	Name	Material
1	Flat Washer	Steel 1045 or Stainless Steel 304
2	Hexagon Socket Screw	Steel 1045 or Stainless Steel 304
3	Sealing Ring	EPDM
4	O-Ring	EPDM
5	Sealing Ring	EPDM
6	O-Ring	EPDM
7	Bonnet	Ductile Iron
8	Stem	Stainless Steel 304 or Steel 1045
9	Plug	Stainless Steel 304 or Steel 1045
10	Disc	Ductile Iron +EPDM
11	Body	Ductile Iron
12	Sealing Ring	EPDM
13	Retaining Ring	C95400
14	Gland	Ductile Iron
15	Post Flange	Ductile Iron
16	Wrench Nut	Ductile Iron
17	Bolt	Stainless Steel 304 or Steel 1045
18	Washer	Stainless Steel 304 or Steel 1045
19	Hexagon Socket Screw	Steel 1045 or Stainless Steel 304
20	Stem Nut	CF8 or C95400

▏Dimensions

Size	DN	L	D	D1	H
2"	50	178	152	152	265
3"	80	203	191	195	322
4"	100	229	229	232	342
6"	150	267	279	282	448
8"	200	292	343	340	534
10"	250	330	406	399	635
12"	300	356	483	456	720

▏FAQ

Are these valves certified for commercial fire protection systems?

Yes, completely. Our valves carry full approvals including FM, UL, CUL, NSF / ANSI 61, and NSF / ANSI 372. If you are sourcing a reliable UL FM approved gate valve 300 psi rated, our design standard perfectly complies with ANSI/AWWA C515 to ensure absolute safety and compliance under fire emergencies.

What are the precise temperature and pressure limitations for these fire valves?

These valves are engineered for high-demand pipeline environments. The maximum working pressure fire protection valve standard is 300PSI, with a maximum testing pressure reaching up to 600PSI (conforms to FM 1120 / 1130, UL 262, ULC / ORD C262-92). The safe working temperature range is rated at 0~80°C / 32~176°F.

We need precise sizing for pipeline matching. What dimensions and standards are available for quick delivery?

We provide full range sizes from 2" to 12" (DN50 to DN300). For standard configurations, we maintain stock for quick lead times. You can review the exact resilient seated gate valve dimensions in our data tables: our face-to-face length (L) ranges from 178mm (2") to 356mm (12"). Our flange standards comply with ASME/ANSI B 16.1 Class 125, ASME/ANSI B 16.42 Class 150, BS EN 1092-2 PN 16, GB / T9113.1, and mechanical standards meet ANSI / AWWA 110 or ANSI / AWWA C153.

What materials are used to prevent rust and ensure zero-leakage sealing?

The main pressure-containing parts including the Body, Bonnet, and Gland are manufactured from heavy-duty Ductile Iron. For zero-leakage, the Disc is vulcanized with Ductile Iron +EPDM, and multiple O-Rings and Sealing Rings utilize high-grade EPDM. All ductile iron gate valve material specifications are strictly controlled, incorporating a C95400 retaining ring and a Stem made of Stainless Steel 304 or Steel 1045.

Can these valves be used in combined fire-potable water systems, and what are the body options?

Absolutely. Certified lead-free by NSF/ANSI 61 & NSF / ANSI 372 is fully available. For body features, it is built with an NPT plug on body with 1 operating nut. Additionally, you can request custom fusion-bonded Epoxy coatings and choose between configurations With and Without Post Flange depending on your indicator post setup.

📦 APC Valve Business Support: Available in sizes 2" to 12". For specific bulk lead times, custom epoxy coating requirements, or regional shipping schedules to your port, please contact our export department directly for a guaranteed 24-hour quotation.

Product message